Round: 62 Ground: Hardcourt outdoor
| ITF Japan F1 | 2017/03/04 01:00 | Johns, Collin v Ono, Yohei | 3-6,6-4,5-7 |
| ITF Japan F3 | 2015/03/23 01:00 | Akira Santillan v Ono, Yohei | 6-3,6-0 |
| ITF Japan F3 | 2015/03/22 01:00 | Habusawa, Tetsuro v Ono, Yohei | 1-6,2-6 |
| ITF Japan F2 | 2015/03/15 01:00 | Ono, Yohei v Moritani, Soichiro | 6-2,2-6,2-6 |
| ITF Japan F1 | 2015/03/09 00:40 | Ono, Yohei v Onishi, Ken | 2-6,1-6 |
| ITF Japan F1 | 2015/03/07 01:00 | Ono, Yohei v Ono, Masayoshi | 6-4,7-6 |
| ITF Japan F7 | 2014/06/21 03:20 | Ono, Yohei v Oku, Hiromasa | 2-6,4-6 |
| ITF Japan F7 | 2014/06/20 02:30 | Ono, Yohei v Ho, Chih-Jen | 4-6,6-3,6-2 |
| ITF Japan F8 | 2016/06/12 01:00 | Matsuzaki, Yutaro v Otsuka, Yohei | 6-2,6-2 |
| ITF Japan F8 | 2016/06/11 04:00 | Otsuka, Yohei v Takahiro Kubo | 6-2,6-3 |
| ITF Japan F5 | 2016/04/03 02:00 | Hashimoto, Taiki v Otsuka, Yohei | 6-0,6-1 |
| ITF Japan F3 | 2016/03/19 00:30 | Tung-Lin Wu v Otsuka, Yohei | 6-1,6-3 |
| ITF Japan F1 | 2016/03/05 01:00 | Otsuka, Yohei v Moritani, Soichiro | 3-6,3-6 |
| ITF Japan F6 Qual | 2015/06/07 01:00 | Makoto Ochi v Otsuka, Yohei | 3-6,6-0,6-1 |
| ITF Japan F4 | 2015/03/28 00:30 | Ryota Tanuma v Otsuka, Yohei | 6-4,6-1 |